基于libuv的TCP设计（一）
本人一直在寻找一个跨平台的网络库，boost与ACE比较庞大，不考虑。对比了libevent,libev,libuv后，最终选择了libuv.可libuv文档少，例子也简单，对于tcp只有个echo-server的例子。网上也找过对其封装的例子，如下
libsourcey库，封装了许多库。对libuv的封装跟其他代码耦合比较紧，难为剥离 http://sourcey.com/libuv-cpp-wrappers/
C++11封装的，可惜VS10未完全支持C++11 https://github.com/larroy/uvpp
C++封装的 https://github.com/keepallsimple/uvpp
本人想实现一个raw tcp server,支持上万链接数的，网上找到的都没合适我的，没办法只能参照各例子自己封装了。
头文件
|
/*************************************** * @file tcpsocket.h * @brief 基于libuv封装的tcp服务器与客户端,使用log4z作日志工具 * @details * @author phata, wqvbjhc@gmail.com * @date 2014-5-13 * @mod 2014-5-13 phata 修正服务器与客户端的错误.现服务器支持多客户端连接 修改客户端测试代码，支持并发多客户端测试 ****************************************/ #ifndef TCPSocket_H #define TCPSocket_H #include "uv.h" #include <string> #include <list> #include <map> #define BUFFERSIZE (1024*1024)
namespace uv { typedef void (*newconnect)(int clientid); typedef void (*server_recvcb)(int cliendid, const char* buf, int bufsize); typedef void (*client_recvcb)(const char* buf, int bufsize, void* userdata);
class TCPServer; class clientdata { public: clientdata(int clientid):client_id(clientid),recvcb_(nullptr) { client_handle = (uv_tcp_t*)malloc(sizeof(*client_handle)); client_handle->data = this; readbuffer = uv_buf_init((char*)malloc(BUFFERSIZE), BUFFERSIZE); writebuffer = uv_buf_init((char*)malloc(BUFFERSIZE), BUFFERSIZE); } virtual ~clientdata() { free(readbuffer.base); readbuffer.base = nullptr; readbuffer.len = 0;
free(writebuffer.base); writebuffer.base = nullptr; writebuffer.len = 0;
free(client_handle); client_handle = nullptr; } int client_id;//客户端id,惟一 uv_tcp_t* client_handle;//客户端句柄 TCPServer* tcp_server;//服务器句柄(保存是因为某些回调函数需要到) uv_buf_t readbuffer;//接受数据的buf uv_buf_t writebuffer;//写数据的buf uv_write_t write_req; server_recvcb recvcb_;//接收数据回调给用户的函数 };
class TCPServer { public: TCPServer(uv_loop_t* loop = uv_default_loop()); virtual ~TCPServer(); static void StartLog(const char* logpath = nullptr);//启动日志，必须启动才会生成日志 public: //基本函数 bool Start(const char *ip, int port);//启动服务器,地址为IP4 bool Start6(const char *ip, int port);//启动服务器，地址为IP6 void close();
bool setNoDelay(bool enable); bool setKeepAlive(int enable, unsigned int delay);
const char* GetLastErrMsg() const { return errmsg_.c_str(); };
virtual int send(int clientid, const char* data, std::size_t len); virtual void setnewconnectcb(newconnect cb); virtual void setrecvcb(int clientid,server_recvcb cb);//设置接收回调函数，每个客户端各有一个 protected: int GetAvailaClientID()const;//获取可用的client id bool DeleteClient(int clientid);//删除链表中的客户端 //静态回调函数 static void AfterServerRecv(uv_stream_t *client, ssize_t nread, const uv_buf_t* buf); static void AfterSend(uv_write_t *req, int status); static void onAllocBuffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf); static void AfterServerClose(uv_handle_t *handle); static void AfterClientClose(uv_handle_t *handle); static void acceptConnection(uv_stream_t *server, int status);
private: bool init(); bool run(int status = UV_RUN_DEFAULT); bool bind(const char* ip, int port); bool bind6(const char* ip, int port); bool listen(int backlog = 1024);
uv_tcp_t server_;//服务器链接 std::map<int,clientdata*> clients_list_;//子客户端链接 uv_mutex_t mutex_handle_;//保护clients_list_ uv_loop_t *loop_; std::string errmsg_; newconnect newconcb_; bool isinit_;//是否已初始化，用于close函数中判断 };
class TCPClient { //直接调用connect/connect6会进行连接 public: TCPClient(uv_loop_t* loop = uv_default_loop()); virtual ~TCPClient(); static void StartLog(const char* logpath = nullptr);//启动日志，必须启动才会生成日志 public: //基本函数 virtual bool connect(const char* ip, int port);//启动connect线程，循环等待直到connect完成 virtual bool connect6(const char* ip, int port);//启动connect线程，循环等待直到connect完成 virtual int send(const char* data, std::size_t len); virtual void setrecvcb(client_recvcb cb, void* userdata);////设置接收回调函数，只有一个 void close();
//是否启用Nagle算法 bool setNoDelay(bool enable); bool setKeepAlive(int enable, unsigned int delay);
const char* GetLastErrMsg() const { return errmsg_.c_str(); }; protected: //静态回调函数 static void AfterConnect(uv_connect_t* handle, int status); static void AfterClientRecv(uv_stream_t *client, ssize_t nread, const uv_buf_t* buf); static void AfterSend(uv_write_t *req, int status); static void onAllocBuffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf); static void AfterClose(uv_handle_t *handle);
static void ConnectThread(void* arg);//真正的connect线程 static void ConnectThread6(void* arg);//真正的connect线程
bool init(); bool run(int status = UV_RUN_DEFAULT); private: enum { CONNECT_TIMEOUT, CONNECT_FINISH, CONNECT_ERROR, CONNECT_DIS, }; uv_tcp_t client_;//客户端连接 uv_loop_t *loop_; uv_write_t write_req_;//写时请求 uv_connect_t connect_req_;//连接时请求 uv_thread_t connect_threadhanlde_;//线程句柄 std::string errmsg_;//错误信息 uv_buf_t readbuffer_;//接受数据的buf uv_buf_t writebuffer_;//写数据的buf uv_mutex_t write_mutex_handle_;//保护write,保存前一write完成才进行下一write
int connectstatus_;//连接状态 client_recvcb recvcb_;//回调函数 void* userdata_;//回调函数的用户数据 std::string connectip_;//连接的服务器IP int connectport_;//连接的服务器端口号 bool isinit_;//是否已初始化，用于close函数中判断 };
} |
#endif // TCPSocket_H
源文件
|
#include "tcpsocket.h" #include "log4z.h"
std::string GetUVError(int retcode) { std::string err; err = uv_err_name(retcode); err +=":"; err += uv_strerror(retcode); return std::move(err); }
namespace uv { /*****************************************TCP Server*************************************************************/ TCPServer::TCPServer(uv_loop_t* loop) :newconcb_(nullptr), isinit_(false) { loop_ = loop; }
TCPServer::~TCPServer() { close(); LOGI("tcp server exit."); }
//初始化与关闭--服务器与客户端一致 bool TCPServer::init() { if (isinit_) { return true; }
if (!loop_) { errmsg_ = "loop is null on tcp init."; LOGE(errmsg_); return false; } int iret = uv_mutex_init(&mutex_handle_); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } iret = uv_tcp_init(loop_,&server_); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } isinit_ = true; server_.data = this; //iret = uv_tcp_keepalive(&server_, 1, 60);//调用此函数后后续函数会调用出错 //if (iret) { // errmsg_ = GetUVError(iret); // return false; //} return true; }
void TCPServer::close() { for (auto it = clients_list_.begin(); it!=clients_list_.end(); ++it) { auto data = it->second; uv_close((uv_handle_t*)data->client_handle,AfterClientClose); } clients_list_.clear();
LOGI("close server"); if (isinit_) { uv_close((uv_handle_t*) &server_, AfterServerClose); LOGI("close server"); } isinit_ = false; uv_mutex_destroy(&mutex_handle_); }
bool TCPServer::run(int status) { LOGI("server runing."); int iret = uv_run(loop_,(uv_run_mode)status); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } return true; } //属性设置--服务器与客户端一致 bool TCPServer::setNoDelay(bool enable) { int iret = uv_tcp_nodelay(&server_, enable ? 1 : 0); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } return true; }
bool TCPServer::setKeepAlive(int enable, unsigned int delay) { int iret = uv_tcp_keepalive(&server_, enable , delay); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } return true; }
//作为server时的函数 bool TCPServer::bind(const char* ip, int port) { struct sockaddr_in bind_addr; int iret = uv_ip4_addr(ip, port, &bind_addr); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } iret = uv_tcp_bind(&server_, (const struct sockaddr*)&bind_addr,0); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } LOGI("server bind ip="<<ip<<", port="<<port); return true; }
bool TCPServer::bind6(const char* ip, int port) { struct sockaddr_in6 bind_addr; int iret = uv_ip6_addr(ip, port, &bind_addr); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } iret = uv_tcp_bind(&server_, (const struct sockaddr*)&bind_addr,0); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } LOGI("server bind ip="<<ip<<", port="<<port); return true; }
bool TCPServer::listen(int backlog) { int iret = uv_listen((uv_stream_t*) &server_, backlog, acceptConnection); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } LOGI("server listen"); return true; }
bool TCPServer::Start( const char *ip, int port ) { close(); if (!init()) { return false; } if (!bind(ip,port)) { return false; } if (!listen(SOMAXCONN)) { return false; } if (!run()) { return false; } LOGI("start listen "<<ip<<": "<<port); return true; }
bool TCPServer::Start6( const char *ip, int port ) { close(); if (!init()) { return false; } if (!bind6(ip,port)) { return false; } if (!listen(SOMAXCONN)) { return false; } if (!run()) { return false; } return true; }
//服务器发送函数 int TCPServer::send(int clientid, const char* data, std::size_t len) { auto itfind = clients_list_.find(clientid); if (itfind == clients_list_.end()) { errmsg_ = "can't find cliendid "; errmsg_ += std::to_string((long long)clientid); LOGE(errmsg_); return -1; } //自己控制data的生命周期直到write结束 if (itfind->second->writebuffer.len < len) { itfind->second->writebuffer.base = (char*)realloc(itfind->second->writebuffer.base,len); itfind->second->writebuffer.len = len; } memcpy(itfind->second->writebuffer.base,data,len); uv_buf_t buf = uv_buf_init((char*)itfind->second->writebuffer.base,len); int iret = uv_write(&itfind->second->write_req, (uv_stream_t*)itfind->second->client_handle, &buf, 1, AfterSend); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } return true; }
//服务器-新客户端函数 void TCPServer::acceptConnection(uv_stream_t *server, int status) { if (!server->data) { return; } TCPServer *tcpsock = (TCPServer *)server->data; int clientid = tcpsock->GetAvailaClientID(); clientdata* cdata = new clientdata(clientid);//uv_close回调函数中释放 cdata->tcp_server = tcpsock;//保存服务器的信息 int iret = uv_tcp_init(tcpsock->loop_, cdata->client_handle);//析构函数释放 if (iret) { delete cdata; tcpsock->errmsg_ = GetUVError(iret); LOGE(tcpsock->errmsg_); return; } iret = uv_accept((uv_stream_t*)&tcpsock->server_, (uv_stream_t*) cdata->client_handle); if ( iret) { tcpsock->errmsg_ = GetUVError(iret); uv_close((uv_handle_t*) cdata->client_handle, NULL); delete cdata; LOGE(tcpsock->errmsg_); return; } tcpsock->clients_list_.insert(std::make_pair(clientid,cdata));//加入到链接队列 if (tcpsock->newconcb_) { tcpsock->newconcb_(clientid); } LOGI("new client("<<cdata->client_handle<<") id="<< clientid); iret = uv_read_start((uv_stream_t*)cdata->client_handle, onAllocBuffer, AfterServerRecv);//服务器开始接收客户端的数据 return; }
//服务器-接收数据回调函数 void TCPServer::setrecvcb(int clientid, server_recvcb cb ) { auto itfind = clients_list_.find(clientid); if (itfind != clients_list_.end()) { itfind->second->recvcb_ = cb; } }
//服务器-新链接回调函数 void TCPServer::setnewconnectcb(newconnect cb ) { newconcb_ = cb; }
//服务器分析空间函数 void TCPServer::onAllocBuffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf) { if (!handle->data) { return; } clientdata *client = (clientdata*)handle->data; *buf = client->readbuffer; }
void TCPServer::AfterServerRecv(uv_stream_t *handle, ssize_t nread, const uv_buf_t* buf) { if (!handle->data) { return; } clientdata *client = (clientdata*)handle->data;//服务器的recv带的是clientdata if (nread < 0) {/* Error or EOF */ TCPServer *server = (TCPServer *)client->tcp_server; if (nread == UV_EOF) { fprintf(stdout,"客户端(%d)连接断开，关闭此客户端\n",client->client_id); LOGW("客户端("<<client->client_id<<")主动断开"); } else if (nread == UV_ECONNRESET) { fprintf(stdout,"客户端(%d)异常断开\n",client->client_id); LOGW("客户端("<<client->client_id<<")异常断开"); } else { fprintf(stdout,"%s\n",GetUVError(nread)); LOGW("客户端("<<client->client_id<<")异常断开："<<GetUVError(nread)); } server->DeleteClient(client->client_id);//连接断开，关闭客户端 return; } else if (0 == nread) {/* Everything OK, but nothing read. */
} else if (client->recvcb_) { client->recvcb_(client->client_id,buf->base,nread); } }
//服务器与客户端一致 void TCPServer::AfterSend(uv_write_t *req, int status) { if (status < 0) { LOGE("发送数据有误:"<<GetUVError(status)); fprintf(stderr, "Write error %s\n", GetUVError(status)); } }
void TCPServer::AfterServerClose(uv_handle_t *handle) { //服务器,不需要做什么 }
void TCPServer::AfterClientClose(uv_handle_t *handle) { clientdata *cdata = (clientdata*)handle->data; LOGI("client "<<cdata->client_id<<" had closed."); delete cdata; }
int TCPServer::GetAvailaClientID() const { static int s_id = 0; return ++s_id; }
bool TCPServer::DeleteClient( int clientid ) { uv_mutex_lock(&mutex_handle_); auto itfind = clients_list_.find(clientid); if (itfind == clients_list_.end()) { errmsg_ = "can't find client "; errmsg_ += std::to_string((long long)clientid); LOGE(errmsg_); uv_mutex_unlock(&mutex_handle_); return false; } if (uv_is_active((uv_handle_t*)itfind->second->client_handle)) { uv_read_stop((uv_stream_t*)itfind->second->client_handle); } uv_close((uv_handle_t*)itfind->second->client_handle,AfterClientClose);
clients_list_.erase(itfind); LOGI("删除客户端"<<clientid); uv_mutex_unlock(&mutex_handle_); return true; }
void TCPServer::StartLog( const char* logpath /*= nullptr*/ ) { zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerMonthdir(LOG4Z_MAIN_LOGGER_ID, true); zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerDisplay(LOG4Z_MAIN_LOGGER_ID,false); zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerLevel(LOG4Z_MAIN_LOGGER_ID,LOG_LEVEL_DEBUG); zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerLimitSize(LOG4Z_MAIN_LOGGER_ID,100); if (logpath) { zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerPath(LOG4Z_MAIN_LOGGER_ID,logpath); } zsummer::log4z::ILog4zManager::GetInstance()->Start(); }
/*****************************************TCP Client*************************************************************/ TCPClient::TCPClient(uv_loop_t* loop) :recvcb_(nullptr),userdata_(nullptr) ,connectstatus_(CONNECT_DIS) , isinit_(false) { readbuffer_ = uv_buf_init((char*) malloc(BUFFERSIZE), BUFFERSIZE); writebuffer_ = uv_buf_init((char*) malloc(BUFFERSIZE), BUFFERSIZE); loop_ = loop; connect_req_.data = this; write_req_.data = this; }
TCPClient::~TCPClient() { free(readbuffer_.base); readbuffer_.base = nullptr; readbuffer_.len = 0; free(writebuffer_.base); writebuffer_.base = nullptr; writebuffer_.len = 0; close(); LOGI("客户端("<<this<<")退出"); } //初始化与关闭--服务器与客户端一致 bool TCPClient::init() { if (isinit_) { return true; }
if (!loop_) { errmsg_ = "loop is null on tcp init."; LOGE(errmsg_); return false; } int iret = uv_tcp_init(loop_,&client_); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } iret = uv_mutex_init(&write_mutex_handle_); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } isinit_ = true; fprintf(stdout,"客户端(%p) init type = %d\n",&client_,client_.type); client_.data = this; //iret = uv_tcp_keepalive(&client_, 1, 60);// //if (iret) { // errmsg_ = GetUVError(iret); // return false; //} LOGI("客户端("<<this<<")Init"); return true; }
void TCPClient::close() { if (!isinit_) { return; } uv_mutex_destroy(&write_mutex_handle_); uv_close((uv_handle_t*) &client_, AfterClose); LOGI("客户端("<<this<<")close"); isinit_ = false; }
bool TCPClient::run(int status) { LOGI("客户端("<<this<<")run"); int iret = uv_run(loop_,(uv_run_mode)status); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } return true; }
//属性设置--服务器与客户端一致 bool TCPClient::setNoDelay(bool enable) { //http://blog.csdn.net/u011133100/article/details/21485983 int iret = uv_tcp_nodelay(&client_, enable ? 1 : 0); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } return true; }
bool TCPClient::setKeepAlive(int enable, unsigned int delay) { int iret = uv_tcp_keepalive(&client_, enable , delay); if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } return true; }
//作为client的connect函数 bool TCPClient::connect(const char* ip, int port) { close(); init(); connectip_ = ip; connectport_ = port; LOGI("客户端("<<this<<")start connect to server("<<ip<<":"<<port<<")"); int iret = uv_thread_create(&connect_threadhanlde_, ConnectThread, this);//触发AfterConnect才算真正连接成功，所以用线程 if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } while ( connectstatus_ == CONNECT_DIS) { #if defined (WIN32) || defined(_WIN32) Sleep(100); #else usleep((100) * 1000) #endif } return connectstatus_ == CONNECT_FINISH; }
bool TCPClient::connect6(const char* ip, int port) { close(); init(); connectip_ = ip; connectport_ = port; LOGI("客户端("<<this<<")start connect to server("<<ip<<":"<<port<<")"); int iret = uv_thread_create(&connect_threadhanlde_, ConnectThread6, this);//触发AfterConnect才算真正连接成功，所以用线程 if (iret) { errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } while ( connectstatus_ == CONNECT_DIS) { //fprintf(stdout,"client(%p) wait, connect status %d\n",this,connectstatus_); #if defined (WIN32) || defined(_WIN32) Sleep(100); #else usleep((100) * 1000) #endif } return connectstatus_ == CONNECT_FINISH; }
void TCPClient::ConnectThread( void* arg ) { TCPClient *pclient = (TCPClient*)arg; fprintf(stdout,"client(%p) ConnectThread start\n",pclient); struct sockaddr_in bind_addr; int iret = uv_ip4_addr(pclient->connectip_.c_str(), pclient->connectport_, &bind_addr); if (iret) { pclient->errmsg_ = GetUVError(iret); LOGE(pclient->errmsg_); return; } iret = uv_tcp_connect(&pclient->connect_req_, &pclient->client_, (const sockaddr*)&bind_addr, AfterConnect); if (iret) { pclient->errmsg_ = GetUVError(iret); LOGE(pclient->errmsg_); return; } fprintf(stdout,"client(%p) ConnectThread end, connect status %d\n",pclient, pclient->connectstatus_); pclient->run(); }
void TCPClient::ConnectThread6( void* arg ) { TCPClient *pclient = (TCPClient*)arg; LOGI("客户端("<<pclient<<")Enter Connect Thread."); fprintf(stdout,"client(%p) ConnectThread start\n",pclient); struct sockaddr_in6 bind_addr; int iret = uv_ip6_addr(pclient->connectip_.c_str(), pclient->connectport_, &bind_addr); if (iret) { pclient->errmsg_ = GetUVError(iret); LOGE(pclient->errmsg_); return; } iret = uv_tcp_connect(&pclient->connect_req_, &pclient->client_, (const sockaddr*)&bind_addr, AfterConnect); if (iret) { pclient->errmsg_ = GetUVError(iret); LOGE(pclient->errmsg_); return; } fprintf(stdout,"client(%p) ConnectThread end, connect status %d\n",pclient, pclient->connectstatus_); LOGI("客户端("<<pclient<<")Leave Connect Thread. connect status "<<pclient->connectstatus_); pclient->run(); }
void TCPClient::AfterConnect(uv_connect_t* handle, int status) { fprintf(stdout,"start after connect\n"); TCPClient *pclient = (TCPClient*)handle->handle->data; if (status) { pclient->connectstatus_ = CONNECT_ERROR; fprintf(stdout,"connect error:%s\n",GetUVError(status)); return; }
int iret = uv_read_start(handle->handle, onAllocBuffer, AfterClientRecv);//客户端开始接收服务器的数据 if (iret) { fprintf(stdout,"uv_read_start error:%s\n",GetUVError(iret)); pclient->connectstatus_ = CONNECT_ERROR; } else { pclient->connectstatus_ = CONNECT_FINISH; } LOGI("客户端("<<pclient<<")run"); fprintf(stdout,"end after connect\n"); }
//客户端的发送函数 int TCPClient::send(const char* data, std::size_t len) { //自己控制data的生命周期直到write结束 if (!data || len <= 0) { errmsg_ = "send data is null or len less than zero."; return 0; }
uv_mutex_lock(&write_mutex_handle_); if (writebuffer_.len < len) { writebuffer_.base = (char*)realloc(writebuffer_.base,len); writebuffer_.len = len; } memcpy(writebuffer_.base,data,len); uv_buf_t buf = uv_buf_init((char*)writebuffer_.base,len); int iret = uv_write(&write_req_, (uv_stream_t*)&client_, &buf, 1, AfterSend); if (iret) { uv_mutex_unlock(&write_mutex_handle_); errmsg_ = GetUVError(iret); LOGE(errmsg_); return false; } return true; }
//客户端-接收数据回调函数 void TCPClient::setrecvcb(client_recvcb cb, void* userdata ) { recvcb_ = cb; userdata_ = userdata; }
//客户端分析空间函数 void TCPClient::onAllocBuffer(uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf) { if (!handle->data) { return; } TCPClient *client = (TCPClient*)handle->data; *buf = client->readbuffer_; }
void TCPClient::AfterClientRecv(uv_stream_t *handle, ssize_t nread, const uv_buf_t* buf) { if (!handle->data) { return; } TCPClient *client = (TCPClient*)handle->data;//服务器的recv带的是TCPClient if (nread < 0) { if (nread == UV_EOF) { fprintf(stdout,"服务器(%p)主动断开\n",handle); LOGW("服务器主动断开"); } else if (nread == UV_ECONNRESET) { fprintf(stdout,"服务器(%p)异常断开\n",handle); LOGW("服务器异常断开"); } else { fprintf(stdout,"服务器(%p)异常断开:%s\n",handle,GetUVError(nread)); LOGW("服务器异常断开"<<GetUVError(nread)); } uv_close((uv_handle_t*)handle, AfterClose); return; } if (nread > 0 && client->recvcb_) { client->recvcb_(buf->base,nread,client->userdata_); } }
//服务器与客户端一致 void TCPClient::AfterSend(uv_write_t *req, int status) { TCPClient *client = (TCPClient *)req->handle->data; uv_mutex_unlock(&client->write_mutex_handle_); if (status < 0) { LOGE("发送数据有误:"<<GetUVError(status)); fprintf(stderr, "Write error %s\n", GetUVError(status)); } } //服务器与客户端一致 void TCPClient::AfterClose(uv_handle_t *handle) { fprintf(stdout,"客户端(%p)已close\n",handle); LOGI("客户端("<<handle<<")已close"); }
void TCPClient::StartLog( const char* logpath /*= nullptr*/ ) { zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerMonthdir(LOG4Z_MAIN_LOGGER_ID, true); zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerDisplay(LOG4Z_MAIN_LOGGER_ID,false); zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerLevel(LOG4Z_MAIN_LOGGER_ID,LOG_LEVEL_DEBUG); zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerLimitSize(LOG4Z_MAIN_LOGGER_ID,100); if (logpath) { zsummer::log4z::ILog4zManager::GetInstance()->SetLoggerPath(LOG4Z_MAIN_LOGGER_ID,logpath); } zsummer::log4z::ILog4zManager::GetInstance()->Start(); }
} |
代码已上传到git: https://github.com/wqvbjhc/libuv_tcp
按照例子，客户端可以并发20多路，超过uv_write就会assert出错，未找到原因
服务器可以接收几十路连接。万百上千路未测试过，因为没有模拟环境。
出处：https://www.cnblogs.com/wqvbjhc/
版权：本文版权归作者和博客园共有
转载：欢迎转载，但未经作者同意，必须保留此段声明；必须在文章中给出原文连接；否则必究法律责任
